Results 1 to 7 of 7
  1. #1


    Member Since
    Apr 03, 2009
    Posts
    15
    Macbook Pro Display Split Into 4
    After resetting the NVRAM (control, option, P, R) on my Macbook Pro 1,1 (2007) running 10.6.8 The screen is now split into 4 parts, each displaying the same thing. The screen immediately appears this way at the first grey screen, however if I do another NVRAM reset, upon restart after the second startup chime, the screen is normal but then after the cog stops spinning, the screen flickers, turns blue and splits into four again.

    Another thing is when I tried using the Apple Hardware Test I couldn't read the instructions as the resolution was too small, but once I restarted and change my display resolution in System Preferences, the resolution was readable in AHT. I assumed the System Settings were loading when the OS had booted and that AHT runs without any of these settings (if that makes sense?)

    I realize the MBP is quite old now but any help would be much appreciated

    Thanks.
    Attached Images Attached Images

  2. #2

    pigoo3's Avatar
    Member Since
    May 20, 2008
    Location
    U.S.
    Posts
    35,771
    Specs:
    2011 13" MBP 2.3ghz, 8gig ram, OS 10.8.5
    My question is...what application did you install previously that allowed this sort of customizing?

    I could be wrong...but I do not believe this is anything related to the stock/unmodified/uncustomized Apple hardware or Mac OS.

    - Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

  3. #3


    Member Since
    Apr 03, 2009
    Posts
    15
    Quote Originally Posted by pigoo3 View Post
    My question is...what application did you install previously that allowed this sort of customizing?

    I could be wrong...but I do not believe this is anything related to the stock/unmodified/uncustomized Apple hardware or Mac OS.

    - Nick
    Hi, not sure what you mean? I never actually installed or customized anything, I just reset the NVRAM and after a reboot my display appeared this way. It is unintentional and unwanted. The display acts this way even with the internal hard disk removed.

    Is there a way of configuring graphics before the OS boots? Or anything in this vein?

    I have seen one or two other people online with this issue but nobody seems to know anything about it.

  4. #4

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
    Posts
    22,388
    Specs:
    Imac 27", 3.3GHz, 512 flash storage, 16GB memory, macOS Sierra.
    If you have not used software such as SizeUp and the operating system loads, run Repair Permissions and then do a NVRAM reset. Fingers crossed.

    Resetting the NVRAM - Mac Guides
    Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!

  5. #5


    Member Since
    Apr 03, 2009
    Posts
    15
    Quote Originally Posted by harryb2448 View Post
    If you have not used software such as SizeUp and the operating system loads, run Repair Permissions and then do a NVRAM reset. Fingers crossed.

    Resetting the NVRAM - Mac Guides
    Thanks, I tried all of this and nothing.

    It's weird that after a PRAM/NVRAM reset, it displays correctly up until a point and then flickers and displays the split screen??

    I'm guessing that at the point it switches, some graphics settings are applied or drivers (or something) is loaded to cause it to do this. It even happens in safe boot.

    Any ideas how to changes these settings? Or a total system/hardware/BIOS reset?

    I'm sure it's not the OS since it happened with no physical disc in the machine.

  6. #6

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
    Posts
    22,388
    Specs:
    Imac 27", 3.3GHz, 512 flash storage, 16GB memory, macOS Sierra.
    Well no BIOS in macs and NVRAM reset takes you into firmware. Did you run Repair Permissions?
    Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!

  7. #7

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Keller, Texas
    Posts
    49,426
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, Sierra
    I'm guessing that at the point it switches, some graphics settings are applied or drivers (or something) is loaded to cause it to do this. It even happens in safe boot.
    If it happens in safe boot mode as you indicate above, then it's likely a hardware problem. Most probably with the graphics. Your machine is equipped with the nVidia GPU which has been problematic in your year MBP and for several years after. Not much you can do since the extended warranty for that has expired. Time for a new machine.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. New Macbook Pro Retina Display - Poor Display
    By Kewell35 in forum Apple Notebooks
    Replies: 11
    Last Post: 06-06-2015, 04:04 PM
  2. split screen on a macBook Pro
    By luvz2tch in forum Switcher Hangout
    Replies: 3
    Last Post: 07-07-2013, 07:59 PM
  3. Help with display/resolution on Macbook Pro and external display!
    By chuckwagon6916 in forum Apple Notebooks
    Replies: 4
    Last Post: 05-16-2011, 12:29 PM
  4. 15" MacBook Pro sees Cinema HD display, but display has no power and is only black.
    By circlesoffire in forum Other Hardware and Peripherals
    Replies: 1
    Last Post: 05-10-2011, 01:01 AM
  5. Split feilds -Final cut pro
    By PowerBookG4 in forum Movies and Video
    Replies: 5
    Last Post: 04-26-2007, 09:22 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •